Rejuvenated metallic glass strips produced via twin-roll casting

doi:10.1016/j.jmst.2019.08.022

CORC > 金属研究所 > 中国科学院金属研究所

	Rejuvenated metallic glass strips produced via twin-roll casting
	Zhang, Long 2; Wu, Yi 2,3; Feng, Shidong 1,4; Li, Wen 3; Zhang, Hongwei 2; Fu, Huameng 2; Li, Hong 2; Zhu, Zhengwang 2; Zhang, Haifeng 2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020-02-01
卷号	38 页码:73-79
关键词	Metallic glass Metallic glass strip Twin-roll casting Rejuvenation Cluster connection
ISSN号	1005-0302
DOI	10.1016/j.jmst.2019.08.022
通讯作者	Zhang, Long(zhanglong@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
英文摘要	The energy state and atomic level structure of metallic glasses (MGs) are very sensitive to their cooling rates, and a lower cooling rate generally causes a lower energy and more relaxed state of MGs. In this work, the Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Vit. 1) ribbons with a thickness of 40 mu m and 110 mu m and the strips with a thickness of 320 mu m and 490 mu m were produced by single-roll melt spinning and twin-roll casting, respectively. The increase in thickness of either ribbons or strips results in a lower energy state with a smaller relaxation enthalpy, a lower content of free volume, and a higher hardness. Although the cooling rate of the twin-roll produced 320 mu m-thick strip is almost one magnitude lower than that of the single-roll produced 110 mu m-thick ribbon, the former, however, possesses a rejuvenated energy state as compared to the latter. Molecular dynamics simulations reveal that the squeezing force during twin-roll casting affects the evolution of connection types of clusters, and the 2-atom and 4-atom connections are prone to be retained, which results in a higher energy state of MGs. Such a rejuvenation process during twin-roll casting can overwhelm the relaxation process caused by the lower cooling rate. Therefore, twin-roll casting is not only a method being capable for producing strips with a large thickness, but also prone to obtain a high energy state of the MG strip. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51701213] ; National Natural Science Foundation of China[51801174] ; National Key Research and Development Program of China[2018YFB0703402] ; Liaoning Revitalization Talents Program[XLYC1802078] ; Liaoning Revitalization Talents Program[XLYC1807062] ; China Postdoctoral Science Foundation[2018M633005] ; Dongguan Innovative Research Team Program[2014607134]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000503164100009
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Liaoning Revitalization Talents Program ; China Postdoctoral Science Foundation ; Dongguan Innovative Research Team Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136513]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Long; Zhang, Haifeng
作者单位	1.Hong Kong Polytech Univ, Adv Mfg Technol Res Ctr, Dept Ind & Syst Engn, Hong Kong 999077, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Shenyang Ligong Univ, Shenyang 110159, Liaoning, Peoples R China 4.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Long,Wu, Yi,Feng, Shidong,et al. Rejuvenated metallic glass strips produced via twin-roll casting[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,38:73-79.
APA	Zhang, Long.,Wu, Yi.,Feng, Shidong.,Li, Wen.,Zhang, Hongwei.,...&Zhang, Haifeng.(2020).Rejuvenated metallic glass strips produced via twin-roll casting.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,38,73-79.
MLA	Zhang, Long,et al."Rejuvenated metallic glass strips produced via twin-roll casting".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 38(2020):73-79.